Oil burner



FIG. 1 is a top perspective view of the oil burner showing my new design;

FIG. 2 is a bottom perspective view thereof:

FIG. 3 is a front view thereof;

FIG. 4 is right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a rear view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The broken lines in the drawings illustrate portions of the oil burner that form no part of the claimed design. 

CLAIM The ornamental design for an oil burner, as shown and described. 